Unknown Network - No Internet connection

When I try to access the internet via Windows 10 and Parallels 12, there is no connection. Network settings says there is an unknown Network and that there is no internet access. I have tried various settings in Parallels - nothing works. I have tried wired and wireless connections on the Mac side.
This was working fine until the latest Parallels update.
Suggestions please?

If you are using Parallels Shared Network, make sure there is only ONE active network adaptor on the Mac side. If you are connecting with the Wi-Fi adaptor, turn off Bluetooth. If you are using a wired connection, turn off Bluetooth and Wi-Fi.